Four Seasons 56178 A/C Refrigerant Suction Hose

Overview of Four Seasons Hose Assembly 56178

The Four Seasons Hose Assembly 56178 is designed specifically for Toyota Avalon and Camry models, providing a reliable A/C refrigerant suction hose solution. Constructed with durable aluminum and rubber materials, this hose assembly ensures efficient refrigerant flow and system performance.

• Compatible with Toyota Avalon and Camry vehicles
• Constructed from aluminum and rubber for durability
• Includes P-nut fitting and captured o-ring ends
• Designed for R134-a refrigerant systems
• Equipped with a muffler and service port (13 mm size)
• Includes gasket, fittings, and two green o-rings (part number 24681)
• OEM replacement part for low-pressure suction line

Four Seasons Hose Assembly Product Line Details

The Hose Assembly product line by Four Seasons focuses on delivering precise HVAC hose and pipe components tailored for vehicle-specific applications. This line emphasizes quality materials and proper fitment, ensuring compatibility with original equipment specifications. The 56178 suction hose assembly is part of this line, engineered to meet the demands of Toyota Avalon and Camry A/C systems without the need for additional brackets or switches.

Product Features and Specifications

This A/C refrigerant suction hose is designed for low-pressure operation within the vehicle’s HVAC system. It features a P-nut fitting on both suction ends and a captured o-ring to maintain a secure, leak-free connection. The hose assembly supports R134-a refrigerant, the standard for many modern vehicles, including the Toyota Avalon and Camry. The inclusion of a muffler helps reduce noise during operation, while the integrated service port (13 mm) allows for convenient maintenance and refrigerant charging. The package includes all necessary fittings and two green o-rings (part number 24681) to ensure proper sealing.

Common Applications and Issues Addressed

• Replacement of worn or damaged A/C refrigerant suction hoses in Toyota Avalon and Camry
• Resolving refrigerant leaks caused by cracked or deteriorated hoses
• Eliminating low-pressure system failures due to faulty suction lines
• Reducing A/C system noise with the built-in muffler
• Facilitating maintenance with an included service port for refrigerant access

Installation Notes and Tips

When installing the Four Seasons Hose Assembly 56178, ensure the vehicle’s A/C system is fully depressurized and evacuated before removal of the old hose. Verify that the P-nut fittings and captured o-rings are properly seated to prevent leaks. The included gasket and fittings should be used as supplied to maintain OEM-level sealing. No bracket or switch installation is required with this part. After installation, test the system for leaks and proper refrigerant pressure using the service port.

Quality Assurance and Warranty

Four Seasons provides this hose assembly as an OEM replacement part, meeting original equipment standards for fit, form, and function. The product includes all necessary seals and fittings to ensure a reliable installation. While specific warranty details are not provided here, Four Seasons typically offers coverage against defects in materials and workmanship. Users should consult product documentation or contact Four Seasons directly for warranty terms.